mysql 5.0.23 vs 5.5 performance benefits and upgrade issues ?

Posted by WarDoGG on Server Fault See other posts from Server Fault or by WarDoGG
Published on 2011-03-06T22:39:20Z Indexed on 2011/03/07 0:11 UTC
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mysql

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indexing

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mysql5

I have been told that mysql 5.5 has a significant performanance boost compared to 5.0

Our server handles alot of data (around 30 million records processed per 5-10 seconds) and requires every drop of performance boost we can give. Will it be beneficial if we upgrade from 5.0.23 to mysql 5.5 ?

Also, we have lots of database indexes setup on the tables and i've been told that sometimes the indexes become corrupt after a version upgrade and they have to be rebuilt. Is this true ?

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